The Paris Peace Conference
January 18, 1919
President Wilson suggested a plan for peace, called the Fourteen Points plan. Part of the plan called for forming the League of Nations to solve disagreements between countries by talking about the problems instead of fighting wars.

The League of Nations was formed, but it did not prevent another big war. Just twenty years later, in 1939, World War II began. It lasted until 1945.

After World War II, the United Nations replaced the League of Nations. The United Nations included more countries than the League of Nations. The United States joined the United Nations in 1945 and is still a member today.